Racing Spark Plug; R5671A-10; Non Resistor; Copper; Nickel V-Groove; Racing; Single; 14 Millimeter Thread; 19 Millimeter Reach; 5/8 Inch Hex; Heat Range 10; 0.020 Inch Gap; Gasket Seat
HEAT RANGES== 11 IS COLDEST 6 WOULD BE HOTTER
CHOOSE FROM DROP DOWN MENU
Racing Spark Plug; R5671A-10; Non Resistor; Copper; Nickel V-Groove; Racing; Single; 14 Millimeter Thread; 19 Millimeter Reach; 5/8 Inch Hex; Heat Range 10; 0.020 Inch Gap; Gasket Seat
HEAT RANGES== 11 IS COLDEST 6 WOULD BE HOTTER
CHOOSE FROM DROP DOWN MENU
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